#pragma once
#include "fields.hpp"
#include <memory>
#include <functional>
namespace bitpr
{

    class BaseMessage
    {

    public:
        using ptr = std::shared_ptr<BaseMessage>;
        virtual ~BaseMessage() {}
        virtual void setId(const std::string &id)
        {
            _rid = id;
        }
        virtual std::string rid()
        {
            return _rid;
        }
        virtual void setMType(MType mtype)
        {
            _mtype = mtype;
        }
        virtual MType mtype()
        {
            return _mtype;
        }
        virtual std::string serialize() = 0;
        virtual bool unserialize(const std::string &msg) = 0;
        virtual bool check() = 0;

    private:
        MType _mtype;     // 消息类型
        std::string _rid; // 请求
    };

    class BaseBuffer
    {

    public:
        using ptr = std::shared_ptr<BaseBuffer>;
        virtual size_t readableSize() = 0;
        virtual int32_t peekInt32() = 0;                      // 取4个字节
        virtual void retrieveInt32() = 0;                     // 4个字节删除
        virtual int32_t readInt32() = 0;                      // 读取4个字节
        virtual std::string retrieveAsString(size_t len) = 0; // 取指定长度的

    private:
    };
    class BaseProtocol
    { // 协议

    public:
    using ptr = std::shared_ptr<BaseProtocol>;
        virtual bool canProcessed(const BaseBuffer::ptr &buf) = 0;
        virtual bool onMessage(const BaseBuffer::ptr &buf, BaseMessage::ptr &msg) = 0;
        virtual std::string serialize(const BaseMessage::ptr &msg) = 0;
    };
    class BaseConnection
    {

    public:
        using ptr = std::shared_ptr<BaseConnection>;
        virtual void send(const BaseMessage::ptr &msg) = 0; // 发送消息
        virtual void shutdown() = 0;
        virtual bool connected() = 0;
    };
    using ConnectionCallback = std::function<void(const BaseConnection::ptr &)>;
    using CloseCallback = std::function<void(const BaseConnection::ptr &)>;
    using MessageCallback = std::function<void(const BaseConnection::ptr &, BaseMessage::ptr &)>;

    class BaseServer
    {
        public:
        using ptr = std::shared_ptr<BaseServer>;
        virtual void setConnectionCallback(const ConnectionCallback &cb)
        {
            _cb_connection = cb;
        }
        virtual void setCloseCallback(const CloseCallback &cb)
        {
            _cb_close = cb;
        }
        virtual void setMessageCallback(const MessageCallback &cb)
        {
            _cb_message = cb;
        }
        virtual void start() = 0;

    protected:
        ConnectionCallback _cb_connection;
        CloseCallback _cb_close;
        MessageCallback _cb_message;
    };
    class BaseClient
    {
    public:
        using ptr = std::shared_ptr<BaseClient>;
        virtual void setConnectionCallback(const ConnectionCallback &cb)
        {
            _cb_connection = cb;
        }
        virtual void setCloseCallback(const CloseCallback &cb)
        {
            _cb_close = cb;
        }
        virtual void setMessageCallback(const MessageCallback &cb)
        {
            _cb_message = cb;
        }
        virtual void connect() = 0;
        virtual void shutdown() = 0;
        virtual bool send(const BaseMessage::ptr &) = 0;
        virtual BaseConnection::ptr connection() = 0; // 获取连接
        virtual bool connected() = 0;

    protected:
        ConnectionCallback _cb_connection;
        CloseCallback _cb_close;
        MessageCallback _cb_message;
    };


}